APA (7th ed.) Citation

Whitefield, G. A journal of a voyage from London to Gibraltar (The sixth edition.).

Chicago Style (17th ed.) Citation

Whitefield, George. A Journal of a Voyage from London to Gibraltar. The sixth edition.

MLA (9th ed.) Citation

Whitefield, George. A Journal of a Voyage from London to Gibraltar. The sixth edition.

Warning: These citations may not always be 100% accurate.